TI-2026-39029 Aliases CVE-2026-54104 GHSA-768x-r5g5-79vc

U.S. GAO EPDS and CBCA EDS client-based privilege escalation

MEDIUM 41CWE-602Published 2026-06-18 · Updated 2026-06-22

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

The U.S. Government Accountability Office (GAO) Electronic Protest Docketing System (EPDS) and Civilian Board of Contract Appeals (CBCA) Electronic Docketing System (EDS) trusts client-provided values for the 'epds_role_id' parameter without verification, allowing a remote, authenticated attacker to escalate their own privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00724 54th percentileScored 2026-11-07

Fix Fixed Electronic Protest Docketing System (EPDS) (Government Accountability Office): 2026-02-22Electronic Docketing System (EDS) (Civilian Board of Contract Appeals): 2026-03-19

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Government Accountability Office	Electronic Protest Docketing System (EPDS)	before 2026-02-22	2026-02-22	Patch available	CNA
Civilian Board of Contract Appeals	Electronic Docketing System (EDS)	before 2026-03-19	2026-03-19	Patch available	CNA

Electronic Protest Docketing System (EPDS) VendorGovernment Accountability Office Affected before 2026-02-22 Fixed in 2026-02-22 Patch available CNA
Electronic Docketing System (EDS) VendorCivilian Board of Contract Appeals Affected before 2026-03-19 Fixed in 2026-03-19 Patch available CNA

Remediation

Fix · CNA Electronic Protest Docketing System (EPDS) (Government Accountability Office) Fixed in 2026-02-22
Fix · CNA Electronic Docketing System (EDS) (Civilian Board of Contract Appeals) Fixed in 2026-03-19

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-06-18
Government Accountability Office Electronic Protest Docketing System (EPDS) 2026-02-22
4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-39031 U.S. GAO EPDS and CBCA EDS network access control bypassPriority MEDIUM 56
- TI-2026-39028 U.S. GAO EPDS and CBCA EDS unauthenticated password changePriority MEDIUM 49
- TI-2026-39030 U.S. GAO EPDS and CBCA EDS user information disclosurePriority LOW 37
Show all 4 records →
Release · 2026-06-18
Civilian Board of Contract Appeals Electronic Docketing System (EDS) 2026-03-19
4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-39031 U.S. GAO EPDS and CBCA EDS network access control bypassPriority MEDIUM 56
- TI-2026-39028 U.S. GAO EPDS and CBCA EDS unauthenticated password changePriority MEDIUM 49
- TI-2026-39030 U.S. GAO EPDS and CBCA EDS user information disclosurePriority LOW 37
Show all 4 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-54104
2026-10-03 Alias added: GHSA-768x-r5g5-79vc

References

Other 4

TI-2026-39031 U.S. GAO EPDS and CBCA EDS network access control bypass CVSS 4.0MEDIUM 5.1
TI-2026-39028 U.S. GAO EPDS and CBCA EDS unauthenticated password change CVSS 4.0CRITICAL 9.3
TI-2026-39030 U.S. GAO EPDS and CBCA EDS user information disclosure CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences